Defending champion Stuart Bingham shrugged off Shaun Murphy to book his place back in the semi-finals of the Masters in Milton Keynes.
Bingham clinched the match 6-3 after a marathon tussle where the highlight was a 133 he made in the second frame to go level at 1-1.
Both players were guilty of missed chances and none proved more important than Murphy's missed yellow in the fourth frame which enabled Bingham to pull back from 58 points behind to level at 2-2.
A 91 in the next frame saw Bingham nudge ahead and he extended his lead only for Murphy to belatedly discover his form with a break of 70 reduce the deficit back to a single frame.
Bingham clinched a 47-minute eighth frame on the colours and took the next in two visits to win the match and book a last-four clash with Yan Bingtao or Stephen Maguire.
Keep your head still and release the cue...#ilovesnooker @Betfred pic.twitter.com/32CUHDXhVG— World Snooker Tour (@WeAreWST) January 14, 2021
Earlier, David Gilbert booked his place in the semi-finals for the second consecutive year after beating Kyren Wilson in a final-frame decider.
Breaks of 67 and 66 in the last two frames ultimately saw Gilbert come from behind to claim a 6-5 victory.
Despite Gilbert appearing to miscue on a simple black with the match at his mercy, Wilson could not capitalise and a missed pink to the middle sealed Gilbert's win.
Gilbert said: "I had a miscue and I'm sat in my chair thinking, 'this is going to be a tough one to swallow'. When Kyren missed that pink in the middle I could have stripped off and run around the table."
Gilbert, who will play either Ronnie O'Sullivan or John Higgins in the last four, had reached just one quarter-final in seven tournaments prior to the Masters this season.
And he admitted the Covid-19 situation has weighed heavy on his form, adding: "I think I've just been getting used to this new crap world we're living in.
"It really is crap. I hate this term 'new normal'. Let's just get back to how it was as soon as possible. When you've enjoyed certain things and it's all just gone, it's easy to let things snowball."